No you cant tell they are there....till you cut them on.
Oh by the way on the bottom cusion be sure to tuck the two center pieces of the element into the valley in the seat.This way when you put your cover back on it wont rip on tear the element.Youll see what I meen you when you get to that point.In other words the element needs to contact the foam from front to back.If that makes since.
